Hi, I want to share with the list that The Research Software Company has released a Python 3 interface to eXist-db.
eXist-db is an XML document database. It is a natural choice for storing a corpus of TEI documents. It does not come with built in Python support, so Python users had to resort to 3rd-party libraries. The most advanced library was created by the Emory University Libraries.
Their library, called eulexistdb is really good, even offering a Django-ORM like interface to eXist-db. Unfortunately, it only supports Python 2 with no Python 3 support in sight. We have forked this library and made it compatible with Python 3.
Full details at - http://www.chelem.co.il/pyexistdb/